North Coast News

News, reviews, and demos
2018 Mar 26th

News, reviews, and demos

We're coming up to the end of the first quarter of 2018, and I'm happy to note that based on the current projection, it looks like the company will actually have a profit this quarter - probably about $10. ( Edit: Well, not quite. The quarter… [Read more]

One minute op amp analysis
2018 Mar 11th

One minute op amp analysis

You can understand most op amp circuits with just three simple rules. If, through negative feedback, the op amp can bring its inputs to equal voltage, then it will do so. Otherwise, it will drive its output near whichever power supply voltage co… [Read more]

Voltage control modifications
2018 Feb 25th

Voltage control modifications

There's a recurring thread that comes up again and again in SDIY fora, where someone asks how to "mod" an existing device that is not voltage-controlled to give it a CV input. Sometimes this question is asked in relation to a specific product, in wh… [Read more]

2018 Feb 20th

A note on RSS

I saw in my Web hosting logs that someone visited this site and spent a significant amount of time using the site search and guessing URLs in an unsuccessful attempt to discover the RSS feed URL - which was linked on every single page, but at the tim… [Read more]

The Music of the Dwarves
2018 Feb 12th

The Music of the Dwarves

Orid Oru, "The Universes of Forever": a world not much different from many others, whose most notable feature is a huge inland ocean connected to the outer waters that surround the world only through a small channel in the northwest. The western… [Read more]

Live-coding a permutation-based fugue
2018 Jan 28th

Live-coding a permutation-based fugue

If you've been following North Coast for a long time, you may remember the live video streams I did back in 2016. This week I spent some time getting the software and hardware set up to do that again, which pretty much meant starting over from… [Read more]

Modular synthesis intro, part 5: Saving money
2018 Jan 21st

Modular synthesis intro, part 5: Saving money

This is Part 5 in a series that started with Part 1.Back in Part 3 of the "intro to modular" series I said it would cost about US$1000 to US$2000 to get started in modular synthesis, and I said that although there are ways to economize, they are real… [Read more]

Random thoughts on negative resistance
2018 Jan 14th

Random thoughts on negative resistance

It's been an exciting week here at North Coast. Since selling out the first batch of Leapfrog filters, I've been busy making more. That's still in progress. Then just yesterday I gave a talk at Frequency Freaks, here in Toronto, and that seemed… [Read more]